I had bad digestion with a host of other ills ....
I am one week on The Master Cleanse and 5 days on Urine Therapy (suggested by my friend, a Ph.D. of Chinese Medicine) and it appears to be working. (you can also see the Urine Therapy forum where we are talking UT with lots of jokes.)
Two other things come to mind. You might look into macrobiotics as a possible eating regime. People have used it to cure cancer so it might answer for you. (I am checking into it for myself right now) and get a book called Spontaneous Healing by Dr. Andrew Weil. It is a really, really insightful book and could help shift your whole healing paradigm.